查看未显示“有时” Cocoa

Question

在我的 AppDelegate->applicationWillFinishLaunching 我加载两个视图 controller 与

NSViewController *v = [[MyCustomViewController alloc] initWithNibName:@"aNib" bundle:nil];

MyCustomViewController 的 initWithNibName:bundle: 方法是自动生成的：

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
...

我在自定义视图中添加他们的视图： [theMainView addSubview:[v view]]

我不明白为什么有时（如十分之一）视图已加载但未显示。

编辑：

MyCustomViewController1 *v = [[MyCustomViewController1 alloc] initWithNibName:@"aNib" bundle:nil];
[themainview addSubview:[v view]];

MyCustomViewController2 *v2 = [[MyCustomViewController2 alloc] initWithNibName:@"aNib2" bundle:nil];
[themainview addSubview:[v2 view]];

self.view1 = [[themainview subviews] objectAtIndex:0];
self.view2  = [[themainview subviews] objectAtIndex:1];

[view2 setHidden:YES];

view1 和 view2 是 AppDelegate 中合成的 2 个 NSView 属性

Answer 1

您的问题可能是您依赖主视图的subviews数组的特定索引处的视图。 您需要确定您正在设置正确的视图。

试试这个：

MyCustomViewController1 *v = [[MyCustomViewController1 alloc] initWithNibName:@"aNib" bundle:nil];
[themainview addSubview:[v view]];

MyCustomViewController2 *v2 = [[MyCustomViewController2 alloc] initWithNibName:@"aNib2" bundle:nil];
[themainview addSubview:[v2 view]];

self.view1 = [v view];
self.view2  = [v2 view];

[view2 setHidden:YES];